miasm.core.objc Namespace Reference

Classes
class	CGen
class	CGenArray
class	CGenDeref
class	CGenField
class	CGenId
class	CGenInt
class	CHandler
class	CLeafTypes
class	CTypesManager
class	CTypesManagerNotPacked
class	CTypesManagerPacked
class	ExprCToExpr
class	ExprToAccessC
class	ObjC
class	ObjCArray
class	ObjCDecl
class	ObjCEllipsis
class	ObjCFunc
class	ObjCInt
class	ObjCPtr
class	ObjCStruct
class	ObjCUnion

Functions
def	missing_definition (objtype)
def	objc_to_str (objc, result=None)
def	access_simplifier (expr)
def	access_str (expr)
def	ast_get_c_access_expr (ast, expr_types, lvl=0)
def	parse_access (c_access)

Variables
string	PADDING_TYPE_NAME = "___padding___"
dictionary	OBJC_PRIO

Detailed Description

C helper for Miasm:
* raw C to Miasm expression
* Miasm expression to raw C
* Miasm expression to C type

Function Documentation

access_simplifier()

def miasm.core.objc.access_simplifier

(

expr

)

Expression visitor to simplify a C access represented in Miasm

@expr: Miasm expression representing the C access

Example:

IN: (In c: ['*(&((&((*(ptr_Test)).a))[0]))'])
[ExprOp('deref', ExprOp('addr', ExprOp('[]', ExprOp('addr',
ExprOp('field', ExprOp('deref', ExprId('ptr_Test', 64)),
ExprId('a', 64))), ExprInt(0x0, 64))))]

OUT: (In c: ['(ptr_Test)->a'])
[ExprOp('->', ExprId('ptr_Test', 64), ExprId('a', 64))]

access_str()

def miasm.core.objc.access_str

(

expr

)

Return the C string of a C access represented in Miasm

@expr: Miasm expression representing the C access

In:
ExprOp('->', ExprId('ptr_Test', 64), ExprId('a', 64))
OUT:
'(ptr_Test)->a'

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ast_get_c_access_expr()

def miasm.core.objc.ast_get_c_access_expr	(		ast,
			expr_types,
			lvl = 0
	)

Transform C ast object into a C Miasm expression

@ast: parsed pycparser.c_ast object
@expr_types: a dictionary linking ID names to their types
@lvl: actual recursion level

Example:

IN:
StructRef: ->
  ID: ptr_Test
  ID: a

OUT:
ExprOp('->', ExprId('ptr_Test', 64), ExprId('a', 64))

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missing_definition()

def miasm.core.objc.missing_definition

(

objtype

)

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objc_to_str()

def miasm.core.objc.objc_to_str	(		objc,
			result = None
	)

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parse_access()

def miasm.core.objc.parse_access

(

c_access

)

Parse C access

@c_access: C access string

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Variable Documentation

OBJC_PRIO

dictionary miasm.core.objc.OBJC_PRIO

Initial value:

=  {
    ObjC: 0,
    ObjCDecl:1,
    ObjCInt:2,
    ObjCPtr:3,
    ObjCArray:4,
    ObjCStruct:5,
    ObjCUnion:6,
    ObjCEllipsis:7,
    ObjCFunc:8,
}

PADDING_TYPE_NAME

string miasm.core.objc.PADDING_TYPE_NAME = "___padding___"